[INFO] fetching crate libpebble 0.3.0...
[INFO] checking libpebble-0.3.0 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate libpebble 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate libpebble 0.3.0 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libpebble 0.3.0
[INFO] finished tweaking crates.io crate libpebble 0.3.0
[INFO] tweaked toml for crates.io crate libpebble 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bit_field v0.10.1
[INFO] [stderr]   Downloaded rustc-std-workspace-core v1.0.0
[INFO] [stderr]   Downloaded ptah_derive v0.1.0
[INFO] [stderr]   Downloaded pci_types v0.2.0
[INFO] [stderr]   Downloaded ptah v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34a68c201ad98d9c36506bfd1f5e3c3bb9364a3bb22bc58cd5118745eff5dee8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "34a68c201ad98d9c36506bfd1f5e3c3bb9364a3bb22bc58cd5118745eff5dee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34a68c201ad98d9c36506bfd1f5e3c3bb9364a3bb22bc58cd5118745eff5dee8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34a68c201ad98d9c36506bfd1f5e3c3bb9364a3bb22bc58cd5118745eff5dee8", kill_on_drop: false }`
[INFO] [stdout] 34a68c201ad98d9c36506bfd1f5e3c3bb9364a3bb22bc58cd5118745eff5dee8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 31dc96f91afec68cc907591a06a9f79ea17b599c15a79f18a4bf3fbc4878e89a
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "31dc96f91afec68cc907591a06a9f79ea17b599c15a79f18a4bf3fbc4878e89a", kill_on_drop: false }`
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]     Checking pci_types v0.2.0
[INFO] [stderr]     Checking libpebble v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(asm, decl_macro, const_generics, unsafe_block_in_unsafe_fn, never_type)]
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout]   = help: consider using `min_const_generics` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/lib.rs:2:29
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(asm, decl_macro, const_generics, unsafe_block_in_unsafe_fn, never_type)]
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout]   = help: consider using `min_const_generics` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "31dc96f91afec68cc907591a06a9f79ea17b599c15a79f18a4bf3fbc4878e89a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31dc96f91afec68cc907591a06a9f79ea17b599c15a79f18a4bf3fbc4878e89a", kill_on_drop: false }`
[INFO] [stdout] 31dc96f91afec68cc907591a06a9f79ea17b599c15a79f18a4bf3fbc4878e89a